Seaweed

Which part of the seaweed acts as a root-like structure that attaches the seaweed to a hard surface?

• holdfast

• stipe

• blade

• thallus

What are the gas-filled bladders that help the blades float near the surface?

• thallus

• holdfast

• stipe

• pneumatocyst

Tags

NGSS.MS-LS2-3

Which part of the seaweed is a stem-like structure that supports the blades?

• thallus

• stipe

• holdfast

• pneumatocysts

Attaches the seaweed to a rocky surface

• Blade

• Holdfast

• Bulb / gas bladder

• Stipe

Primary photosynthetic structure of the seaweed (where the photosynthesis takes place)

• Blade

• Holdfast

• Bulb / Gas Bladder Pneumatocyst

• Stipe

Tags

NGSS.MS-LS1-6

What is B pointing to?

• Blade

• Holdfast

• Pneumatocyst / Gas Bladder / Bulb

• Stipe

Tags

NGSS.MS-LS2-3

What is D pointing to?

• Blade

• Holdfast

• Bulb / Gas Bladder / Pneumatocyst

• Stipe

Why is seaweed NOT considered a true plant?

• Does photosynthesis

• No Veins in the Leaves or Stems

• Forms the base of many food chains

• Has roots

What accessory pigment makes brown algae usually "yellowish-brown" and allows them to absorb the green wavelength of light in coastal waters?

• chlorophyll

• fucoxanthin

• phycobilins

Tags

NGSS.MS-LS2-3

What accessory pigments do red algae have that make them red/purple?

• chlorophyll

• fucoxanthin

• phycobilins